refs #6698 initial set of commits for mailing tab work
refs #6648 add fields to log report export
refs #6698 move System.php mods to core
refs #6698 mailings tab
Made executable.
First attempt (but heavily tested) at a PHP login verification based on groups.  This was necessary to restore functionality that was lost when we moved from Drupal6 to Drupal7.
Merge branch 'dev' into test